The case here is as follows:
- create random unity sprite prefab
- place sprite's pivot point outside of the sprite (say, pivot U is 2.53 and pivot V is -1.22)
- try to attach this sprite via the SpriteAttacher script
Expected result here would be seeing the sprite sticking with it's pivot point to the placeholder.
Actual result here looks like the sprite's pivot point is somewhere in U: 1 and V: 0.
The bug is caused by Mathf.InverseLerp - it just cannot return values outside of [0; 1] range.
So the solution would be to make our own version of InverseLerp, which handles such situations correctly.
* [Corona] Adding ability to load atlas files
* [Corona] Added example of using atlas
# Documentation:
## Lua runtime: `spine.Atlas.parse`
`Atlas.lua` introduces `spine.Atlas.parse(atlasPath, baseDir)` funciton. This function can be use across Lua runtimes to implement their their own image sheet bindings. It will return Array of `Page`s or `nil` if error.
### `Page` properties:
* `name` - filename of the page (`"raptor.png"`)
* `size` - dimmensions of original image (`[1022,1022]`)
* `format` - texture format (`"RGBA8888"`)
* `filter` - filter for texture scalin up and down (`["Linear","Linear"]`)
* `wrap` - wrap modes (`"none"`)
* `regions` - Array of `Region`s on this page
### `Region` properties:
* `name` - region name (`"torso"`)
* `rotate` - is image rotated in texture (`true`)
* `xy` - image frame position on texture (`[610,647]`)
* `size` - image frame size on texture (`[54,91]`)
* `splits` - (optional)
* `pad` - (optional)
* `orig` - original image size (`[54,91]`)
* `offset` - offset if image was trimmed (`[0,0]`)
* `index` - `-1`
## Corona runtime: `spine.GetAtlasSprites`
`spine.lua` introduces `spine.GetAtlasSprites(atlasName, baseDir)`, which returns `Sprites` table. This funciton would parse atlas, locate atlas textures, load them to Corona's image sheets and create convinience bindings and functions. User can use convenience functions, or write own wrappers.
### `Sprites` table
#### Convenience functions:
* `ATLAS_HELPER_createImage` - can be assigned to `skeleton.createImage`
* `ATLAS_HELPER_createMesh` - can be assigned to `skeleton.createMesh`
* `ATLAS_HELPER_setupSkeleton` - use this on skeleton to assing both creation functions (`sprites.setupSkeleton(skeleton)`)
### Region name bindings:
All other elements of `Sprites` table would contain binding `sprites["region_name"] = sheetReference`, where each `sheetReference` contains following elements:
* `frame` - number of frame in image sheet (`42`)
* `region` - reference to `Region` table
* `page` - reference to `Page` table. `Page` table would also get new property - `sheet`, reference to Corona's image sheet where sprites can be accessed.
As result, to create image for `attachment` code would look something like `display.newImage( sprites[attachment.name].page.sheet, sprites[attachment.name].frame )`. For more rubust example see `ATLAS_HELPER_createImage` in `spine-corona/spine.lua`.
# Known Issues:
* Corona would not work with padded/cropped atlases.
* Possible (but unprobable) name collision with region names and `ATLAS_HELPER_*` functions.
- Updated spine-c to 3.2.01, adding shearing and transform constraints plus various bug fixes
- Introduced CMake based system to generated IDE projects for spine-sfml, and download dependencies for all other runtimes
- Updated all spine-c based runtime READMEs with new usage and example instructions
- Moved spine-cocos2d-iphone v2 and spine-cocos2dx v2 to separate branches. These will no longer be updated
- Renamed spine-cocos2d-iphone to spine-cocos2d-iphone
Removed cocos2d-ios v2 Spine runtime. See branch cocos2d-ios-v2 for legacy apps
Moved cocos2d-ios v3 Spine runtime to top-level sphine-cocos2d-iphone directory
Added Visual Studio support to CMake build
Added Linux support for spine-sfml. Do apt-get install sfml-dev as a prerequisit, makes everyone's life easier
Refactored Mac OS X framework detection and linking, added SFML_STATIC define for Win32 build
Removed spine-cocos2dx v2 runtime. See cocos2dx-v2 branch on Github
Moved spine-cocos2dx v3 runtime to root of spine-cocos2dx
spine-c, spine-cocos2d-iphone, spine-cocos2dx, spine-sfml updated to 3.2.00
* Added CMake build for spine-c and spine-sfml
* Removed spine-cocos2dx v2 and spine-cocos2d-iphone v2. See the cocos2dx-v2 and cocos2d-ios-v2 branches if you need these runtimes still
* Added transform constraint rotate, scale, and shear offsets and mixes
* Added spTransformConstraintTimeline
* Added bone shearing
* Added spShearTimeline
* Changed spSkeleton_updateCache
* Changed JSON format, see http://esotericsoftware.com/spine-json-format
Ported 1be89d1c5766fedb91f080a23bffaef6609b86c3 to spine-c
Cleaned up spine-c, removed IDE specific files and unnecessary data/ folder. Use CMake to import into your most beloved IDE
Added spine-cocos2d-iphone to CMake, only downloads cocos2d-objc dependency. Use Xcode project in spine-cocos2d-iphone/ to run examples
Added -std=c98 -pedantic -Wall to spine-c CMake file, fixed up all warnings, fixed up .gitignore
Fixed warnings, replaced calls to stdlib cos/sin/atan2 with macros
New cocos2dx example project, for Windows, Linux and Mac OS X. Doesn't work on Windows/Linux yet
Fixed spine-cocos2dx Visual Studio projects
Reworked cocos2dx dependency resolution
Fixed up src/header paths in CMake files. Dependencies are only downloaded if you build a specific runtime example
Updated spine-sfml README with instructions for Windows
Updated spine-sfml README with instructions for Linux and Mac OS X
Fixed README formatting
More formatting, sorry, can't preview markdown...
More README changes
Renamed spine-cocos2d-iphone to spine-cocos2d-objc, fixed up Xcode project and README
Updated spine-cocos2d-objc README
Added context when exceptions are thrown during attachment and animation parsing.
Added JsonRollback, a tool for converting newer JSON so it can be loaded by an older Spine version.
[Unity] Update BoneFollower
Added coverting linkedmesh to weightedlinkedmesh.
[LUA] AnimationState trackCount bugfixes (#466)
* resolved conflict
* made trackCount keep count, not maximum track index.
Prettier with varargs.
Updated .gitignore to exclude cocos2dx dependencies
Fixed up READMEs of spine-c based runtimes with proper version info. Fixed cocos2d-x CMake build to delete outdated Spine runtime shipped by cocos2d-x
